4 papers
The Information Content of Quasar Variability Light Curves: How Well Can we Infer Stochastic Model Parameters?
Brendon J. Brewer, Geraint F. Lewis, Xiang Yu +1
Quasar variability, driven by multi-scale physical processing within a relativistic accretion disk, is commonly modelled with stochastic time series models. The simplest of these i…
Rotational Kinematics in the Globular Cluster System of M31: Insights from Bayesian Inference
Yuan Li, Brendon J. Brewer, Geraint F. Lewis +1
As ancient stellar systems, globular clusters (GCs) offer valuable insights into the dynamical histories of large galaxies. Previous studies of GC populations in the inner and oute…
Revisiting The Cosmological Time Dilation of Distant Quasars: Influence of Source Properties and Evolution
Brendon J. Brewer, Geraint F. Lewis, Yuan Li
After decades of searching, cosmological time dilation was recently identified in the timescale of variability seen in distant quasars. Here, we expand on the previous analysis to…
Rotation of the Globular Cluster Population of the Dark Matter Deficient Galaxy NGC 1052-DF4: Implication for the Total Mass
Yuan Li, Brendon J. Brewer, Geraint F. Lewis
We explore the globular cluster population of NGC 1052-DF4, a dark matter deficient galaxy, using Bayesian inference to search for the presence of rotation. The existence of such a…